EP 1561531 A4 20061025 - NIOBIUM POWDER, PROCESS FOR PRODUCING THE SAME AND SOLID ELECTROLYTIC CAPACITOR THEREFROM
Title (en)
NIOBIUM POWDER, PROCESS FOR PRODUCING THE SAME AND SOLID ELECTROLYTIC CAPACITOR THEREFROM
Title (de)
NIOBPULVER, HERSTELLUNGSVERFAHREN DAFÜR UND FESTELEKTROLYTKONDENSATOR DARAUS
Title (fr)
POUDRE DE NIOBIUM, PROCEDE DE PRODUCTION DE CETTE POUDRE ET CONDENSATEUR A ELECTROLYTE SOLIDE FABRIQUE A PARTIR DE CELLE-CI
Publication
Application
Priority
- JP 0313491 W 20031022
- JP 2002306725 A 20021022
Abstract (en)
[origin: EP1561531A1] A niobium powder can be used to manufacture a niobium capacitor of excellent electrical properties. The niobium powder when formed into a sintered body of 3.15 to 3.9 g/cm<3> density exhibits a capacitance (CV value at a formation voltage of 20V) ranging from 80 to 240 kCV/g and a CV retention of 57% or higher. With respect to the production of the niobium powder, the employed potassium niobate fluoride has a water content of 1000 ppm or less as determined from the amount of water generated upon heating at 600 DEG C according to the Karl Fischer method.
IPC 1-7
IPC 8 full level
B22F 9/20 (2006.01); B22F 1/00 (2006.01); B22F 9/24 (2006.01); C22B 34/24 (2006.01); C22C 1/04 (2006.01); C22C 27/02 (2006.01); H01G 9/052 (2006.01)
CPC (source: EP US)
B22F 9/24 (2013.01 - EP US); C22B 34/24 (2013.01 - EP US); C22C 1/045 (2013.01 - EP US); H01G 9/0525 (2013.01 - EP US)
Citation (search report)
[X] PATENT ABSTRACTS OF JAPAN vol. 017, no. 168 (M - 1391) 31 March 1993 (1993-03-31)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1561531 A1 20050810; EP 1561531 A4 20061025; AU 2003275590 A1 20040513; JP 2004143477 A 20040520; US 2006016291 A1 20060126; WO 2004037470 A1 20040506
DOCDB simple family (application)
EP 03758782 A 20031022; AU 2003275590 A 20031022; JP 0313491 W 20031022; JP 2002306725 A 20021022; US 53235705 A 20050420